Terracer and grader



c. w. CUNDIFF TERRACER AND GRADER Dec. 16, 1941.

2 Sheets-Sheet 1 Filed Nov. 4, 1940 Dec. 16, 1941. c, w -UND|F F'2,266,625

TERRAGER' AND GRADER Filed Nov. 4, 1940 2 Sheets-Sheet 2 Patented Dec.16, 1941 UNITED, STATES PATENT Y OFFICE TERRACER AND GRADER Charles W.Cundifi, Owensborb, Ky. 7

Application November 4, 1940, Serial No. 364,277

4 Claims.

My invention relates to an improvement in terracers and graders, and isreally an improvement on the invention set forth in Letters Patent No.2,062,210, granted to me November 24, 1936.

My present invention consists in a cross-bar and fifth-wheel incombination with two pullbeams, one at each end of the blade of themachine, and all pivotally connected together to a centrallylocateddraw-bar, thus forming a solid unit which keeps the machine fromskidding sidewise and enables the entire machine to be pulled in adefinite predetermined direction. Included with these features are meansfor reversing the machine and changing the angular direction of theblade so that it will out either to the right or left or straight acrossthe body of earth to be moved and terraced or graded.

In the accompanying drawings:

Fig. 1 is a view in perspective;

Fig. 2 is a plan view;

Fig. 3 is a longitudinal sectional view through the center of thedraw-bar; and

Figs. 4 and 5 are sectional details.

The pull-beam I, the cross-bar 2 pivoted thereto, the scraping blade 3,and the two gooseneck bars 4 pivotally connected with the blade andextending to the cross-bar 2, and all five parts pivotally connectedtogether, constitute the framework of the machine.

The pull-beam I is preferably constructed of channel-iron to give itlightness and strength; the cross-bar 2 of angle-iron, and thecross-bar, blade, and the gooseneck bars 4, form a parallelogram.

The rear nds of the gooseneck bars 4 are pivotally connected with theback of the blade by pins 5, and their forward ends are ivotallyconnected to the extreme outer ends of the crossbar 2 by the pins 6. Asliding lever-operated latch-pin 1 locks the cross-bar 2 at the requiredangle with respect to the pull-beam I, and a lever 8 is pivoted at 9 tothe pull-beam and is adapted to raise the lever-operated latch-pin 'Iwhich has sliding connection with the pull-beam out of the hole ID inthe fifth-wheel II on the cross-bar 2.

At the forward end of the pull-beam I, the machine is supported from acaster-wheel I2 to which it is pivotally connected, and means isprovided through the holes I3 and bolts I4 for raising or lowering thedraft attachment at this end of the machine.

The rear end of the machine is supported on flange wheels I5, and eachwheel I5 is journaled on the rearwardly projecting end I5 of a handleverI1, and the hand-levers are pivotally connected by pins I8 to thebrackets I9, which in turn are pivotally connected with the back of theblade 3, The hand levers are provided with a latch 20 adapted to engageteeth of the toothed segments 2I carried by the brackets IS. A platform22 is provided for the operator to stand on when his weight is required,and this is connected by a bar 25 which is pivoted at its outer ends tothe brackets I9, and at its center by a bolt 26 to a bar 21, the forwardend of which is secured by bolts 28 to the rear end of the pullbeam I,as shown in Fig. 3.

Thus it will be seen that the blade 3 is capable of a wide range ofadjustment from. a position perpendicular to the pull-beam to variousangles thereto, either to the right or left, accordingly as the dirt isto be thrown to the right or left. With this adjustment, by raising thelever operated latch-pin I, not only the blade 3 but also the cross-bar2, the bar 25, the bars 4, brackets I9, and the wheels I5 are alladjusted in unison according to the requirement of the work to be done,and in order to get the required tilt to the blade the levers H areoperated to raise and lower the wheels I5 to adjust the tilt of theblade from end to end. And by raising the pin I, it is possible toreverse the machine easily and quickly, and by its release to lock thevarious parts in a predetermined adjusted position and to hold the bladeand other parts rigidly so that the blade will cut smoothly and evenly.

I claim:

1. In a machine of the character described, the combination of apull-beam, two cross-bars pivotally connected therewith, a scrapingblade pivotally connected with th pull-beam and located between saidcross-bars, gooseneck bars pivotally connected with the scraping bladeat their rear ends and pivotally connected with the forward cross-bar attheir forward ends, brackets pivotally connected with the scraping bladeand rear cross-bar, toothed segments carried by the brackets, latchlevers pivoted to the brackets, and wheels rotatably connected with thelatch lever.

2. In a machine of the character described, the combination of apull-beam, two cross-bars pivotally connected therewith, a scrapingblade pivotally connected with the pull-beam and to one of thecross-bars, brackets pivotally connected with the scraping blade andwith the other of the cross-bars, wheels supporting the outer ends ofthe brackets, and operating levers adjustably pivoted to the bracketsand having axles for the wheels.

3. In a machine of the character described, the combination of apull-beam, two cross-bars pivotally connected therewith, a scrapingblade pivotally connected with the pullbeam and to one of thecross-bars, brackets pivotally connected with the scraping blade andwith the other of the cross-bars, wheels supporting the outer ends ofthe brackets, and operating levers adjustably pivoted to the bracketsand having axes for the wheels, a platform supported on the cross-barwhich connects the two brackets, and a means for securing the pull-beam,cross-bars, and blade in any predetermined adjusted position.

4. In a machine of the character described, the

combination of a pull-beam, a scraper blade, and a cross-bar at theforward end of the machine, the scraper blade and cross-bar pivotallyconnected to the pull-beam, goosenecks extending from the scraper bladeto the said cross-bar and pivotally connected to the scraper-blade andcross-bar, brackets pivotally connected with the scraper-blade, across-bar pivoted to the brackets and to the pull-beam, latch leversadjustably pivoted to the brackets, wheels in which the rear ends of thelevers are supported, and means for locking the scraper blade,cross-bars and brackets to the pull-beam at any predetermined angle tothe latter.

CHARLES W. CUNDIFF.

